Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

简述我国休息休假的概念及其分类。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简答网络节点的概念及其分类。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述小麦品质的概念及其分类。

简述专用小麦的概念及其分类。

简述特种作业概念及其分类。